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S. J. Wang
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Journal Articles

Measurement of direct and indirect bandgaps in synthetic ultrathin MoS2 and WS2 films from photoconductivity spectra

I. Shlyakhov, K. Iakoubovskii, S. Banerjee, A. Gaur, D. Lin, I. Asselberghs, I. Radu, J. Chai, M. Yang, S. J. Wang, M. Houssa, A. Stesmans, V. Afanas’ev
Journal: Journal of Applied Physics
J. Appl. Phys. 129, 155302 (2021)
https://doi.org/10.1063/5.0046305
Published: April 2021
View article titled, Measurement of direct and indirect bandgaps in synthetic ultrathin MoS<sub>2</sub> and WS<sub>2</sub> films from photoconductivity spectra
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Includes: Supplementary data
Journal Articles

Development status of KSTAR ECH system

M. Joung, S. J. Wang, S. G. Kim, J. W. Han, I. H. Lee, J. G. Kwak
Journal: AIP Conference Proceedings
AIP Conf. Proc. 2254, 090003 (2020)
https://doi.org/10.1063/5.0013635
Published: September 2020
View article titled, Development status of KSTAR ECH system
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Journal Articles

Diindenoperylene thin-film structure on MoS2 monolayer

N. Mrkyvkova, M. Hodas, J. Hagara, P. Nadazdy, Y. Halahovets, M. Bodik, K. Tokar, J. W. Chai, S. J. Wang, D. Z. Chi, A. Chumakov, O. Konovalov, A. Hinderhofer, M. Jergel, E. Majkova, P. Siffalovic, F. Schreiber
Journal: Applied Physics Letters
Appl. Phys. Lett. 114, 251906 (2019)
https://doi.org/10.1063/1.5100282
Published: June 2019
View article titled, Diindenoperylene thin-film structure on MoS<sub>2</sub> monolayer
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Journal Articles

Three-dimensional periodic materials as seismic base isolator for nuclear infrastructure

Witarto Witarto, S. J. Wang, C. Y. Yang, Jiaji Wang, Y. L. Mo, K. C. Chang, Yu Tang
Journal: AIP Advances
AIP Advances 9, 045014 (2019)
https://doi.org/10.1063/1.5088609
Published: April 2019
View article titled, Three-dimensional periodic materials as seismic base isolator for nuclear infrastructure
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Journal Articles

Considerations of the q-profile control in KSTAR for advanced tokamak operation scenarios

J. Chung, J. Ko, S.-H. Hahn, H. S. Kim, S. J. Wang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 89, 10D112 (2018)
https://doi.org/10.1063/1.5035126
Published: August 2018
View article titled, Considerations of the q-profile control in KSTAR for advanced tokamak operation scenarios
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Journal Articles

Band alignment of 2D WS2/HfO2 interfaces from x-ray photoelectron spectroscopy and first-principles calculations

H. L. Zhu, C. J. Zhou, B. S. Tang, W. F. Yang, J. W. Chai, W. L. Tay, H. Gong, J. S. Pan, W. D. Zou, S. J. Wang, D. Z. Chi
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 171604 (2018)
https://doi.org/10.1063/1.5022719
Published: April 2018
View article titled, Band alignment of 2D WS<sub>2</sub>/HfO<sub>2</sub> interfaces from x-ray photoelectron spectroscopy and first-principles calculations
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Journal Articles

Seismic isolation of small modular reactors using metamaterials

Witarto Witarto, S. J. Wang, C. Y. Yang, Xin Nie, Y. L. Mo, K. C. Chang, Yu Tang, Robert Kassawara
Journal: AIP Advances
AIP Advances 8, 045307 (2018)
https://doi.org/10.1063/1.5020161
Published: April 2018
View article titled, Seismic isolation of small modular reactors using metamaterials
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Journal Articles

Band alignment at interfaces of synthetic few-monolayer MoS2 with SiO2 from internal photoemission

I. Shlyakhov, J. Chai, M. Yang, S. J. Wang, V. V. Afanas’ev, M. Houssa, A. Stesmans
Journal: APL Materials
APL Mater. 6, 026801 (2018)
https://doi.org/10.1063/1.5002617
Published: November 2017
View article titled, Band alignment at interfaces of synthetic few-monolayer MoS<sub>2</sub> with SiO<sub>2</sub> from internal photoemission
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Includes: Supplementary data
Journal Articles

Defect evolution and its impact on the ferromagnetism of Cu-doped ZnO nanocrystals upon thermal treatment: A positron annihilation study

Zhi-Yuan Chen, Yuqian Chen, Q. K. Zhang, N. Qi, Z. Q. Chen, S. J. Wang, P. H. Li, P. Mascher
Journal: Journal of Applied Physics
J. Appl. Phys. 121, 025703 (2017)
https://doi.org/10.1063/1.4973960
Published: January 2017
View article titled, Defect evolution and its impact on the ferromagnetism of Cu-doped ZnO nanocrystals upon thermal treatment: A positron annihilation study
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Journal Articles

Recent experimental results of KSTAR RF heating and current drive

S. J. Wang, J. Kim, J. H. Jeong, H. J. Kim, M. Joung, Y. S. Bae, J. G. Kwak
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1689, 030014 (2015)
https://doi.org/10.1063/1.4936479
Published: December 2015
View article titled, Recent experimental results of KSTAR RF heating and current drive
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Journal Articles

Modification to the accelerator of the NBI-1B ion source for improving the injection efficiency

T. S. Kim, S. H. Jeong, D. H. Chang, S. R. In, M. Park, B. K. Jung, K. W. Lee, S. J. Wang, Y. S. Bae, H. T. Park, J. S. Kim, W. Cho, D. J. Choi
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 87, 02B317 (2016)
https://doi.org/10.1063/1.4935004
Published: November 2015
View article titled, Modification to the accelerator of the NBI-1B ion source for improving the injection efficiency
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Journal Articles

Temperature dependence of photoluminescence spectra of bilayer two-dimensional electron gases in LaAlO3/SrTiO3 superlattices: coexistence of Auger recombination and single-carrier trapping

H. J. Harsan Ma, T. Venkatesan, S. J. Wang, Ariando
Journal: AIP Advances
AIP Advances 5, 067163 (2015)
https://doi.org/10.1063/1.4923320
Published: June 2015
View article titled, Temperature dependence of photoluminescence spectra of bilayer two-dimensional electron gases in LaAlO<sub>3</sub>/SrTiO<sub>3</sub> superlattices: coexistence of Auger recombination and single-carrier trapping
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Journal Articles

Band structures of surface acoustic waves in nanostructured phononic crystals with defects

C. G. Hou, V. L. Zhang, H. S. Lim, S. C. Ng, M. H. Kuok, J. Deng, S. J. Wang
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 243104 (2014)
https://doi.org/10.1063/1.4904478
Published: December 2014
View article titled, Band structures of surface acoustic waves in nanostructured phononic crystals with defects
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Journal Articles

Tunable bilayer two-dimensional electron gas in LaAlO3/SrTiO3 superlattices

H. J. Harsan Ma, Z. Huang, W. M. Lü, A. Annadi, S. W. Zeng, L. M. Wong, S. J. Wang, T. Venkatesan, Ariando
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 011603 (2014)
https://doi.org/10.1063/1.4887235
Published: July 2014
View article titled, Tunable bilayer two-dimensional electron gas in LaAlO<sub>3</sub>/SrTiO<sub>3</sub> superlattices
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Journal Articles

The energy-band alignment at molybdenum disulphide and high-k dielectrics interfaces

Junguang Tao, J. W. Chai, Z. Zhang, J. S. Pan, S. J. Wang
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 232110 (2014)
https://doi.org/10.1063/1.4883865
Published: June 2014
View article titled, The energy-band alignment at molybdenum disulphide and high-<em>k</em> dielectrics interfaces
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Journal Articles

Load resilient transmission line system for long-pulse, high-power ICRF operation at KSTAR

H. J. Kim, S. J. Wang, Y. S. Bae, H. L. Yang, J. G. Kwak, S. H. Kim, M. Park, KSTAR Team
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1580, 279–282 (2014)
https://doi.org/10.1063/1.4864542
Published: February 2014
View article titled, Load resilient transmission line system for long-pulse, high-power ICRF operation at KSTAR
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Journal Articles

An initial measurement of a fast neutral spectrum for ion cyclotron range of frequency heated plasma using two-channel compact neutral particle analyzers in KSTAR

S. H. Kim, S. J. Wang, M. Park, S. K. Kim
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 84, 113504 (2013)
https://doi.org/10.1063/1.4829696
Published: November 2013
View article titled, An initial measurement of a fast neutral spectrum for ion cyclotron range of frequency heated plasma using two-channel compact neutral particle analyzers in KSTAR
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Journal Articles

Effect of oxygen stoichiometry on the insulator-metal phase transition in vanadium oxide thin films studied using optical pump-terahertz probe spectroscopy

H. W. Liu, L. M. Wong, S. J. Wang, S. H. Tang, X. H. Zhang
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 151908 (2013)
https://doi.org/10.1063/1.4824834
Published: October 2013
View article titled, Effect of oxygen stoichiometry on the insulator-metal phase transition in vanadium oxide thin films studied using optical pump-terahertz probe spectroscopy
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Includes: Supplementary data
Journal Articles

Tip-sensitive all-silica fiber-optic Fabry–Perot ultrasonic hydrophone for charactering high intensity focused ultrasound fields

D. H. Wang, P. G. Jia, S. J. Wang, C. L. Zhao, D. P. Zeng, H. Wang, F. Q. Li
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 044102 (2013)
https://doi.org/10.1063/1.4816329
Published: July 2013
View article titled, Tip-sensitive all-silica fiber-optic Fabry–Perot ultrasonic hydrophone for charactering high intensity focused ultrasound fields
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Journal Articles

Propagation of a short-pulse laser-driven electron beam in matter

L. Volpe, D. Batani, G. Birindelli, A. Morace, P. Carpeggiani, M. H. Xu, F. Liu, Y. Zhang, Z. Zhang, X. X. Lin, F. Liu, S. J. Wang, P. F. Zhu, L. M. Meng, Z. H. Wang, Y. T. Li, Z. M. Sheng, Z. Y. Wei, J. Zhang, J. J. Santos, C. Spindloe
Journal: Physics of Plasmas
Phys. Plasmas 20, 033105 (2013)
https://doi.org/10.1063/1.4793453
Published: March 2013
View article titled, Propagation of a short-pulse laser-driven electron beam in matter
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